Assessing the impact of atmospheric heatwaves on intertidal clams

He, Guixiang; Zou, Jie; Liu, Xiaolong; Liang, Fang; Liang, Jian; Yang, Ke; Masanja, Fortunatus; Xu, Yang; Zheng, Zhe; Deng, Yuewen; Zhao, Liqiang

doi:10.1016/j.scitotenv.2022.156744

Cited by 29 publications

(8 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Exposure to heat waves has varying effects on intertidal bivalves, and the study of Manila clams provides valuable insights. In simulated scenarios at 50°C and only two days of air exposure, Manila clams were highly vulnerable to atmospheric heat waves, resulting in 100% mortality (He et al, 2022b). As the study progressed, the clams exhibited significantly increased enzymatic activity, particularly when repeatedly exposed to heat waves.…”

Section: Discussionmentioning

confidence: 99%

Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters

Heo,

Kim,

Kim

et al. 2023

Front. Mar. Sci.

View full text Add to dashboard Cite

Oysters are a major commercial and ecological fishery resource. Recently, the oyster industry has experienced mass mortality in summer due to environmental factors. Generally, the survival of oysters in aquatic environments is mainly impacted by environmental stressors such as elevated sea temperatures and reduced salinity; however, the stressors impacting tidal flat oysters that are repeatedly exposed to air remain poorly understood. Hence, we studied the relationship between environmental factors and the survival of tidal flat pacific oysters in Incheon, South Korea, where mass mortality is common. Principal component analysis and Bayesian networks revealed that air temperature (in spring and summer) and sea temperature (in summer) are related to oyster production. In habitats of the tidal flat oysters during the summer, high temperatures of 34.7–35.4°C (maximum 47.6°C) were observed for average durations of 0.8–1.9 hours (maximum 3.6 hours). Furthermore, heat waves occurred for up to 12 consecutive days. Results from the multiple stress test showed that when exposed to 45°C (air temperature) for 4 hours per day, the survival rate of oysters was 42.5% after only 2 days and 0% after 6 days. The findings stemming from the field observations and stress tests suggest that high temperatures during emersion may contribute to mass mortality of oysters in summer, indicating a potential threat to oysters due to climate change. To understand the effects of future thermal stress on oysters more accurately, simultaneous long-term trend analyses and field-based observations are required.

show abstract

Section: Discussionmentioning

confidence: 99%

Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters

Heo,

Kim,

Kim

et al. 2023

Front. Mar. Sci.

View full text Add to dashboard Cite

show abstract

“…Autophagy is closely intertwined with inflammatory and immune responses, and cytokines possibly mediate this interaction, since autophagy has been shown to regulate, and be regulated by, a wide range of proinflammatory cytokines such as Il [ 69 , 70 ]. Although inflammation is substantially correlated to infection, other environmental factors can also interplay with this process [ 71 ]. It is generally accepted that acute temperature changes negatively affect the welfare of marine bivalves by decreasing their overall physiological performance and immune responses [ 16 , 17 , 72 , 73 ].…”

Section: Discussionmentioning

confidence: 99%

Seasonality in Synergism with Multi-Pathogen Presence Leads to Mass Mortalities of the Highly Endangered Pinna nobilis in Greek Coastlines: A Pathophysiological Approach

et al. 2023

View full text Add to dashboard Cite

Mortalities of Pinna nobilis populations set at risk the survival of the species from many Mediterranean coastline habitats. In many cases, both Haplosporidium pinnae and Mycobacterium spp. are implicated in mass mortalities of P. nobilis populations, leading the species into extinction. In the context of the importance of these pathogens’ role in P. nobilis mortalities, the present study investigated two Greek populations of the species hosting different microbial loads (one only H. pinnae and the second both pathogens) by the means of pathophysiological markers. More specifically, the populations from Kalloni Gulf (Lesvos Island) and from Maliakos Gulf (Fthiotis), seasonally sampled, were chosen based on the host pathogens in order to investigate physiological and immunological biomarkers to assess those pathogens’ roles. In order to determine if the haplosporidian parasite possesses a major role in the mortalities or if both pathogens are involved in these phenomena, a variety of biomarkers, including apoptosis, autophagy, inflammation and heat shock response were applied. The results indicated a decreased physiological performance of individuals hosting both pathogens in comparison with those hosting only H. pinnae. Our findings provide evidence for the synergistic role of those pathogens in the mortality events, which is also enhanced by the influence of seasonality.

show abstract

“…During the experiment and on a daily basis, M. strigata were subjected to 6 hours of aerial exposure followed by 18 hours of immersion in the flow-through seawater system. The experiment lasted five days, which corresponds to the average duration of heatwaves in the region (Zhang et al, 2020;He et al, 2022). Continuous monitoring of seawater and atmospheric temperatures with HOBO temperature data loggers, with the seawater temperature of 27.5 ± 0.5°C during immersion, and atmospheric temperatures of 32 ± 2°C and 40 ± 0.5°C at ambient and heatwaves conditions during emersion, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Intertidal ecosystems are among the most ecologically and economically productive in the world, but are frequently attacked by intensifying heatwaves (Leung et al, 2019). Atmospheric temperature changes at low tide in the intertidal zone are far more dramatic and extreme than sea surface temperatures (Helmuth et al, 2016;He et al, 2022). Organisms inhabiting intertidal habitats are consequently susceptible to intensifying heatwaves (Balogh and Byrne, 2020;Scanes et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Heatwaves hinder mussel invasion by weakening byssus production

Xu,

Yang,

Liu

et al. 2023

Front. Mar. Sci.

Self Cite

View full text Add to dashboard Cite

Heatwaves and bioinvasion are among the most pressing ecological issues worldwide. The highly invasive South American mussels (Mytella strigata) can construct extremely dense byssal mats in intertidal habitats they invade, causing serious threats to local biodiversity and ecosystems. Yet, little is known about whether intensifying heatwaves might facilitate their invasions. Here, we investigated how the byssus production of M. strigata responds to heatwaves scenarios that have frequently occurred in recent years in the South China Sea. Compared with those grown at ambient temperature, mussels exposed to simulation heatwaves secreted significantly lowered number, length, and diameter of byssal threads, and exhibited significant impairments in the adhesion of byssus. Differential expressions of key genes involved in byssus production (e.g., foot protein gene, cell apoptosis gene, extracellular matrix-receptor interaction gene, and neuroactive ligand-receptor interaction gene) offered deeper insights into heatwaves-induced physiological changes in byssal gland. These results can provide an improved understanding of responses of mussel byssus production to intensifying heatwaves and take a major leap forward in examining the dispersal of highly invasive species in a rapidly warming ocean.

show abstract

Assessing the impact of atmospheric heatwaves on intertidal clams

Cited by 29 publications

References 61 publications

Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters

Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters

Seasonality in Synergism with Multi-Pathogen Presence Leads to Mass Mortalities of the Highly Endangered Pinna nobilis in Greek Coastlines: A Pathophysiological Approach

Heatwaves hinder mussel invasion by weakening byssus production

Contact Info

Product

Resources

About